Thin ice may have protected lake water on frozen Mars
Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing.
Astrobiology
Jan 5, 2026
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Page 2: Research news on seasonal ice
Seasonal ice is a transient phase of water that forms, persists, and melts on an annual or sub-annual cycle in response to periodic temperature and radiative forcing variations. As a substance, it commonly occurs as freshwater or saline ice with physical properties (crystal structure, brine volume, density, and mechanical strength) strongly modulated by temperature and impurity content. In cryospheric and planetary science, seasonal ice includes lake, river, and sea ice, as well as frost and snow that undergo regular phase transitions, influencing surface energy balance, gas exchange, and hydrological or climatic processes during their recurrent formation–melting cycles.
AI and underwater recordings reveal bowhead whale breeding grounds in Arctic sea ice
If bowhead whales produce particularly varied and diverse calls in one area, it is very likely that the area is a breeding ground. The species occurs exclusively in the Arctic Ocean and is therefore endemic to this region.
Plants & Animals
Dec 16, 2025
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Antarctic sea ice hits its third-lowest winter peak on record
Antarctica's winter sea ice has hit its third-lowest peak in nearly half a century of satellite monitoring, researchers said Tuesday, highlighting the growing influence of climate change on the planet's southern pole.
Environment
Oct 1, 2025
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Seals on the move: Researchers track migration using satellite technology
Northern fur seals are long-distance migrants, moving seasonally between breeding colonies and wintering grounds. After leaving breeding colonies in autumn, they travel south for winter foraging, returning in early spring. ...
Plants & Animals
Aug 7, 2025
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Study suggests liquid brines could form on Mars' surface during seasonal frost melting
Due to extreme temperatures and the dryness of Mars, it's thought to be impossible for liquid water to form on the planet's surface, a critical precondition for habitability. The only hope of finding liquid water appears ...
Astrobiology
Jul 16, 2025
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Frozen, but not sealed: Arctic Ocean remained open to life during ice ages, study suggests
For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ice ages. Now, a new study published in Science Advances challenges this idea as the research team ...
Earth Sciences
Jul 4, 2025
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84
Sea ice plays important role in variability of carbon uptake by Southern Ocean
New research reveals the importance of winter sea ice in the year-to-year variability of the amount of atmospheric CO2 absorbed by a region of the Southern Ocean.
Earth Sciences
Jun 18, 2025
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As Antarctic sea ice shrinks, iconic emperor penguins are in more peril than previously thought
When winter comes to Antarctica, seals and Adélie penguins leave the freezing shores and head for the edge of the forming sea ice. But emperor penguins stay put.
Plants & Animals
Jun 15, 2025
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Scientists develop AI model to enhance seasonal Arctic sea ice prediction
Predicting the extent of Arctic sea ice in September has significant implications for climate change and shipping in the Arctic. However, seasonal forecasts for September sea ice often encounter a challenge known as the "spring ...
Earth Sciences
May 27, 2025
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When glaciers roamed Mars
The surface of Mars is known for being an extremely cold, desiccated, and irradiated place. But as its many surface features attest, the red planet was once a warmer, wetter place with flowing water and glaciers. Today, most ...
Planetary Sciences
Mar 29, 2025
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